Gulfport-Biloxi International to Jacksonville International GPT → JAX
382 nautical miles (440 statute miles) east on a straight line, true course 087°, about 089° magnetic at the departure end (variation 2W). At 120 knots that is 2 h 37 min at the quickest height in today's winds (30,000 ft, a 26-knot tailwind), arriving about 11:58 pm EDT (03:58 UTC), after sunset at the destination. Right now GPT is VFR, wind from the west-southwest (250°) at 3 knots; JAX is VFR, wind from the west (270°) at 3 knots. For planning, not a briefing: the legal preflight briefing comes from Flight Service (1-800-WX-BRIEF) or the FAA's own tools. Airlines fly this pair: 37 flights in the DOT's last twelve reported months, the route's page.
The route the straight line, the warnings crossed, restrictions, pilot reports and the airports along the way · click a mark for its words
Green, blue, red and purple airport dots are the flying conditions reported there now (VFR, marginal VFR, IFR, low IFR); grey means no report. Red areas are SIGMETs, orange areas AIRMETs, hatched red areas temporary flight restrictions. Map tiles: OpenFreeMap, data © OpenStreetMap contributors.
Warnings the route crosses SIGMETs and AIRMETs whose area the line passes through or comes within 25 nm of
- AIRMET TANGO 6W: moderate turbulence above 18,000 ft from 28,000 ft to 40,000 ft. Over the route from 29 to 118 nm out.
A SIGMET warns of weather hazardous to all aircraft; an AIRMET of weather that matters to small aircraft and to flying without instruments. "From 60 to 180 nm out" is measured along the route from GPT.
Pilot reports along the route within 50 nm of the line, last three hours, the serious ones first
- B739 at 32,000 ft, 18 nm north, 5:23 pm CDT (22:23 UTC): moderate chop turbulence, remarks: zhu. 39 nm along the route, 18 nm north of the line.
as filed, and in English
MOB UA /OV SJI/TM 2223/FL320/TP B739/TB MOD CHOP/RM ZHU
- Report
- a routine report filed through MOB
- Where
- over SJI
- Time
- 22:23 UTC
- Height
- at 32,000 ft
- Aircraft
- B739
- Turbulence
- moderate chop
- Remarks
- zhu
- B739 at 34,000 ft, 35 nm north, 5:27 pm CDT (22:27 UTC): light chop turbulence, remarks: zhu. 59 nm along the route, 35 nm north of the line.
as filed, and in English
MOB UA /OV SJI040025/TM 2227/FL340/TP B739/TB CONS LGT CHOP/RM ZHU
- Report
- a routine report filed through MOB
- Where
- 25 nm northeast (040°) of SJI
- Time
- 22:27 UTC
- Height
- at 34,000 ft
- Aircraft
- B739
- Turbulence
- continuous light chop
- Remarks
- zhu
Winds aloft along the route, and the time en route the forecast for use 20:00–03:00 UTC · at 120 knots true airspeed
The eastbound cruising heights for this course (VFR: odd thousands plus 500 ft; above 18,000 ft the forecast levels), with the wind averaged along the line from the 3 forecast points nearest it (MOB, TLH, JAX). A plus sign is a headwind, a minus sign a tailwind.
| Height | Average wind | Head- or tailwind | Temperature | Ground speed | Time en route | Arrival |
|---|---|---|---|---|---|---|
| 3,500 ft | 310° at 13 kt | −11 kt | 131 kt | 2 h 55 min | 12:16 am EDT (04:16 UTC) | |
| 5,500 ft | 330° at 21 kt | −10 kt | 130 kt | 2 h 56 min | 12:17 am EDT (04:17 UTC) | |
| 7,500 ft | 320° at 21 kt | −12 kt | 15 °C | 132 kt | 2 h 54 min | 12:15 am EDT (04:15 UTC) |
| 9,500 ft | 300° at 20 kt | −16 kt | 12 °C | 136 kt | 2 h 49 min | 12:10 am EDT (04:10 UTC) |
| 11,500 ft | 290° at 22 kt | −20 kt | 9 °C | 140 kt | 2 h 44 min | 12:05 am EDT (04:05 UTC) |
| 13,500 ft | 290° at 22 kt | −21 kt | 4 °C | 141 kt | 2 h 43 min | 12:04 am EDT (04:04 UTC) |
| 15,500 ft | 280° at 21 kt | −21 kt | -1 °C | 141 kt | 2 h 43 min | 12:04 am EDT (04:04 UTC) |
| 17,500 ft | 280° at 21 kt | −21 kt | -5 °C | 141 kt | 2 h 43 min | 12:04 am EDT (04:04 UTC) |
| 18,000 ft FL180 | 270° at 21 kt | −21 kt | -6 °C | 141 kt | 2 h 43 min | 12:04 am EDT (04:04 UTC) |
| 24,000 ft FL240 | 270° at 25 kt | −25 kt | -17 °C | 145 kt | 2 h 38 min | 11:59 pm EDT (03:59 UTC) |
| 30,000 ft FL300 | 270° at 26 kt | −26 kt | -33 °C | 146 kt | 2 h 37 min | 11:58 pm EDT (03:58 UTC) |
| 34,000 ft FL340 | 250° at 21 kt | −20 kt | -42 °C | 140 kt | 2 h 44 min | 12:05 am EDT (04:05 UTC) |
| 39,000 ft FL390 | 240° at 27 kt | −23 kt | -51 °C | 143 kt | 2 h 40 min | 12:01 am EDT (04:01 UTC) |
Based on data from the 11th at 18:00 UTC; valid on the 12th at 00:00 UTC for use 20:00 to 03:00 UTC; temperatures above 24,000 ft are below zero. Heights are above sea level; a height is left out when the forecast has no wind for it over most of the line (the ground is higher). Ground speed is the airspeed less the headwind; the time en route is for the straight line and ignores climb, descent and routing around weather.
The forecast points as issued
| Point | From | 3,000 | 6,000 | 9,000 | 12,000 | 18,000 | 24,000 | 30,000 | 34,000 | 39,000 |
|---|---|---|---|---|---|---|---|---|---|---|
| MOB | used from 0 nm out; 24 nm from the line | 310/7 | 350/18 18° | 330/16 12° | 300/18 7° | 320/17 -6° | 330/27 -17° | 340/52 -33° | 350/53 -43° | 330/38 -50° |
| TLH | used from 147 nm out; 73 nm from the line | 300/17 | 340/32 17° | 320/27 13° | 300/27 8° | 280/23 -7° | 250/37 -17° | 230/44 -33° | 220/53 -41° | 220/48 -51° |
| JAX | used from 294 nm out; 64 nm from the line | 280/14 | 300/22 16° | 260/27 15° | 260/26 9° | 240/41 -6° | 230/38 -16° | 220/44 -32° | 200/49 -41° | 200/52 -53° |
The weather now: both ends and the airports along the way public airports with a weather report within 25 nm of the line, one for each stretch
| Airport | Where | Conditions | Wind | Visibility | Ceiling | Elevation | Reported |
|---|---|---|---|---|---|---|---|
| GPT Gulfport, MS | departure | VFR | from the west-southwest (250°) at 3 knots | 10+ mi | none | 28 ft | 7:53 pm CDT (00:53 UTC) |
| PQL Pascagoula, MS | 29 nm out, 2 nm northwest of the line, tower | VFR | calm | 10+ mi | none | 16 ft | 00:53 UTC |
| JKA Gulf Shores, AL | 69 nm out, 11 nm south of the line, tower | VFR | from the west (280°) at 4 knots | 10+ mi | none | 17 ft | 00:55 UTC |
| PNS Pensacola, FL | 98 nm out, 0 nm northwest of the line, tower | VFR | from the west (270°) at 7 knots | 10+ mi | none | 120 ft | 00:53 UTC |
| DTS Destin, FL | 137 nm out, 6 nm southwest of the line, tower | VFR | calm | 10+ mi | none | 22 ft | 00:53 UTC |
| MAI Marianna, FL | 206 nm out, 20 nm north of the line | VFR | from the west (280°) at 3 knots | 10+ mi | none | 110 ft | 00:53 UTC |
| TLH Tallahassee, FL | 245 nm out, 7 nm south of the line, tower | VFR Sky: a few clouds at 25,000 feet | from the southwest (230°) at 6 knots | 10+ mi | none | 83 ft | 00:53 UTC |
| TVI Thomasville, GA | 265 nm out, 24 nm north of the line | VFR | calm | 10+ mi | none | 263 ft | 01:15 UTC |
| VLD Valdosta, GA | 304 nm out, 17 nm north of the line, tower | VFR | calm | 10+ mi | none | 203 ft | 00:53 UTC |
| JAX Jacksonville, FL | destination | VFR Sky: scattered clouds at 20,000 feet | from the west (270°) at 3 knots | 10+ mi | none | 29 ft | 8:56 pm EDT (00:56 UTC) |
The highest airport on this list sits at 263 ft; the ground between airports is higher still. Check the sectional chart for the terrain and the minimum safe heights along the line.
At JAX when you get there the forecast at the estimated arrival, 11:58 pm EDT (03:58 UTC)
Wind from the west at 5 knots, visibility more than 6 miles, a few clouds at 15,000 feet, scattered clouds at 25,000 feet VFR
The whole forecast for JAX
- From Sun 8:00 pm EDT (00:00 UTC): wind from the west at 5 knots, visibility more than 6 miles, a few clouds at 15,000 feet, scattered clouds at 25,000 feet
- From Mon 10:00 am EDT (14:00 UTC): wind from the northwest at 11 knots, gusting to 17, visibility more than 6 miles, a few clouds at 3,500 feet
- From Mon 6:00 pm EDT (22:00 UTC): wind from the north-northwest at 6 knots, visibility more than 6 miles, clear skies
The forecast for GPT, the departure
- From Sun 7:00 pm CDT (00:00 UTC): wind light and variable, visibility more than 6 miles, a few clouds at 25,000 feet
- From Mon 1:00 pm CDT (18:00 UTC): wind from the south at 6 knots, visibility more than 6 miles, clear skies
Temporary flight restrictions on the line or within 25 nm of it
- 6/8389 Jacksonville, FL, Thursday, October 15, 2026 through Sunday, October 18, 2026 UTC 11 nm from the route, at the destination end · air shows/sports · starts Thursday 15 October · ZJX
Daylight
Sunset at GPT 6:28 pm CDT (23:28 UTC), at JAX 6:59 pm EDT (22:59 UTC) (civil twilight ends 7:23 pm EDT (23:23 UTC)). At 120 knots the arrival at JAX is before sunrise there (7:26 am EDT (11:26 UTC)).
Each restriction opens the FAA's own page with the exact area, heights and times. Ordinary notices to air missions (closed runways, lights out) are not shown: the FAA's notice search is not open to sites like this one at this time.
Radar and forecast charts for the regions crossed government pictures, the latest each time the page loads
Sources: the Aviation Weather Center's data service (SIGMETs, AIRMETs, graphical AIRMETs, pilot reports, winds and temperatures aloft, observations and terminal forecasts), the National Weather Service radar, the Weather Prediction Center's charts, the FAA's temporary flight restriction list and shapes, and the FAA's airport file for the positions, elevations and magnetic variation. Fetched when the page is viewed and kept a few minutes. Each leg is the straight line between its two airports; airways, terrain and airspace are not considered. The airports in detail: Gulfport-Biloxi International, Jacksonville International.